Search icon CANCEL
Subscription
0
Cart icon
Cart
Close icon
You have no products in your basket yet
Save more on your purchases!
Savings automatically calculated. No voucher code required
Arrow left icon
All Products
Best Sellers
New Releases
Books
Videos
Audiobooks
Learning Hub
Newsletters
Free Learning
Arrow right icon
Arrow up icon
GO TO TOP
Mastering Windows PowerShell Scripting (Second Edition) - Second Edition

You're reading from  Mastering Windows PowerShell Scripting (Second Edition) - Second Edition

Product type Book
Published in Oct 2017
Publisher Packt
ISBN-13 9781787126305
Pages 440 pages
Edition 2nd Edition
Languages
Author (1):
 Brenton J.W. Blawat Brenton J.W. Blawat
Profile icon Brenton J.W. Blawat
Toc

Table of Contents (24) Chapters close

Title Page
Credits
About the Authors
About the Reviewer
www.PacktPub.com
Customer Feedback
Preface
1. Introduction to PowerShell 2. Working with PowerShell 3. Modules and Snap-Ins 4. Working with Objects in PowerShell 5. Operators 6. Variables, Arrays, and Hashtables 7. Branching and Looping 8. Working with .NET 9. Data Parsing and Manipulation 10. Regular Expressions 11. Files, Folders, and the Registry 12. Windows Management Instrumentation 13. HTML, XML, and JSON 14. Working with REST and SOAP 15. Remoting and Remote Management 16. Testing 17. Error Handling

Anchors


An anchor does not match a character; instead, it matches what comes before (or after) a character:

Description

Character

Example

Beginning of a string

^

'aba' -match '^a'

End of a string

$

'cbc' -match 'c$'

Word boundary

\b

'Band and Land' -match '\band\b'

Anchors are useful where a character, string, or word may appear elsewhere in a string and the position is critical.

For example, there might be a need to get values from the PATH environment variable that starts with a specific drive letter. One approach to this problem is to use the start of a string anchor, in this case, retrieving everything that starts with the C drive:

$env:PATH -split ';' | Where-Object { $_ -match '^C' }

Alternatively, there may be a need to get every path three or more directories deep from a set:

$env:PATH -split ';' | Where-Object { $_ -match '\\.+\\.+\\.+$' }

The word boundary matches both before and after a word. It allows a pattern to look for a specific word, rather than a string of characters that may be a word...

lock icon The rest of the chapter is locked
Register for a free Packt account to unlock a world of extra content!
A free Packt account unlocks extra newsletters, articles, discounted offers, and much more. Start advancing your knowledge today.
Unlock this book and the full library FREE for 7 days
Get unlimited access to 7000+ expert-authored eBooks and videos courses covering every tech area you can think of
Renews at €14.99/month. Cancel anytime}